using coded pulse groups

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CPC
H04Q1/39

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HELECTRICITY H04Electric communication H04QSELECTING H04Q1/00Details of selecting apparatus or arrangements for establishing connections among stations for the purpose of transferring information via these connections

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H04Q1/39using coded pulse groups

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Patents Grantslast 30 patents

Information Patent Grant
Telephone system having a dial data changeover switch
- Patent number 5,241,591
- Issue date Aug 31, 1993
- Rohm Co., Ltd.
- Mitsuro Saji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and an apparatus for mutually converting different signaling...
- Patent number 5,077,735
- Issue date Dec 31, 1991
- Electronics and Telecommunications Research Institute
- Kim J. Myung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Call progress capability for a switched channel data service unit
- Patent number 5,060,259
- Issue date Oct 22, 1991
- Integrated Network Corporation
- Daniel M. Joffe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Call progress capability for a switched channel data service unit
- Patent number 4,995,076
- Issue date Feb 19, 1991
- Integrated Network Corporation
- Daniel M. Joffe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Asynchronous signaling system for digital communication channel
- Patent number 4,683,567
- Issue date Jul 28, 1987
- British Columbia Telephone Company
- Michael J. Green
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Combined analog/digital CCIS data transmitter/receiver circuit
- Patent number 4,672,603
- Issue date Jun 9, 1987
- GTE Communication Systems Corporation
- Joseph A. Conforti
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Activation in a digital subscriber connection
- Patent number 4,592,051
- Issue date May 27, 1986
- Telefonaktiebolaget LM Ericsson
- Hans-Jorg Frizlen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Activation of a transmission link by code sending
- Patent number 4,574,376
- Issue date Mar 4, 1986
- Telefonaktiebolaget L M Ericsson
- Ingemar E. Dahlqvist
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital code word detection
- Patent number 4,375,102
- Issue date Feb 22, 1983
- U.S. Philips Corporation
- Andreas J. W. Van Daal
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-party telephone system allowing speech connection between ext...
- Patent number 4,174,466
- Issue date Nov 13, 1979
- Telefonaktiebolaget L M Ericsson
- Lars I. Broger
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone exchange signalling unit
- Patent number 4,129,756
- Issue date Dec 12, 1978
- Le Material Telephonique
- Bernard M. H. Depouilly
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Averaging and peak detection circuit
- Patent number 4,075,513
- Issue date Feb 21, 1978
- Rockwell International Corporation
- William L. Hinckley
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Serial digital bit stream code detector
- Patent number 4,060,797
- Issue date Nov 29, 1977
- L.M. Ericsson Pty. Ltd.
- Anthony Robert Maxwell
- G05 - CONTROLLING REGULATING
Information Patent Grant
Time division multiplexed digital switching apparatus
- Patent number 3,997,727
- Issue date Dec 14, 1976
- L M Ericsson Pty. Ltd.
- John Charles Platts
- G05 - CONTROLLING REGULATING
Information Patent Grant
Digital signal generator
- Patent number 3,985,965
- Issue date Oct 12, 1976
- GTE Sylvania Incorporated
- Robert G. Field
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital control processor
- Patent number 3,965,457
- Issue date Jun 22, 1976
- L.M. Ericsson Pty. Ltd.
- Keith Harwood
- G05 - CONTROLLING REGULATING
Information Patent Grant
3858010
- Patent number 3,858,010
- Issue date Dec 31, 1974
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3609662
- Patent number 3,609,662
- Issue date Sep 28, 1971
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3281700
- Patent number 3,281,700
- Issue date Oct 25, 1966
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3250998
- Patent number 3,250,998
- Issue date May 10, 1966
- G08 - SIGNALLING
Information Patent Grant
2974282
- Patent number 2,974,282
- Issue date Mar 7, 1961
- G05 - CONTROLLING REGULATING
Information Patent Grant
2484084
- Patent number 2,484,084
- Issue date Oct 11, 1949
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
1956670
- Patent number 1,956,670
- Issue date May 1, 1934
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

using coded pulse groups

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Telephone system having a dial data changeover switch

Method and an apparatus for mutually converting different signaling...

Call progress capability for a switched channel data service unit

Call progress capability for a switched channel data service unit

Asynchronous signaling system for digital communication channel

Combined analog/digital CCIS data transmitter/receiver circuit

Activation in a digital subscriber connection

Activation of a transmission link by code sending

Digital code word detection

Multi-party telephone system allowing speech connection between ext...

Telephone exchange signalling unit

Averaging and peak detection circuit

Serial digital bit stream code detector

Time division multiplexed digital switching apparatus

Digital signal generator

Digital control processor

3858010

3609662

3281700

3250998

2974282

2484084

1956670

Patents Applicationslast 30 patents